Study on Structure Improvement of Sleeve Orifice of Sleeve Regulating Valve
Aiming at the problem that the flow capacity of the valve under a certain opening degree is reduced and that the noise in the valve is increased,resulting in damage to the sleeve,valve core and valve seat,this paper takes DN80 sleeve regulating valve as the research object to improve the orifice of the regulating valve sleeve.The flow characteristics of the valve under two structures are compared and analyzed.An experimental platform is set up in the laboratory of China Tianrui Cement Group Co.,Ltd.,and the flow coefficient curves and flow resistance coefficient curves in the regulating valve channel are analyzed,compared and verified by numerical simulation.The results show that the flow capacity of the shrinkage type is significantly higher than that of the other two types at full opening,with a flow rate of 18.257 kg·s-1 and a flow coefficient of 163.135.Compared with the original model at full opening,the flow capacity of 14.876 kg·s-1 is improved by 22.73％,which verifies the rationality of the improved flow shrinkage orifice.
sleeve type regulating valveexperimental systemflow coefficientcoefficient of flow resistance
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